Assignee
Inventors
- Mitsuru Ishizuka (12 patents)
- Noriyuki Yamaguchi (13 patents)
- Hitoshi Hasegawa (47 patents)
- Masaharu Yao (10 patents)
- Hiroshi Ohnishi (76 patents)
- Yuuzi Yamamoto (1 patents)
- Masayuki Tuzi (1 patents)
US Patent 5381183 · Granted Jan 10, 1995